Developer Guide and Reference

Contents

_mm_cvtps_ph()

Converts four single-precision floating point values to half-precision (16-bit) floating point values. The corresponding 3rd Generation Intel® Core™ Processor extension instruction is
VCVTPS2PH
.

Syntax

extern __m128i _mm_cvtps_ph(__m128 x, int imm);
Arguments
X
a vector containing four single-precision FP values
Imm
a conversion control constant
Description
This intrinsic converts four single-precision floating point values to half-precision (16-bit) floating point values.
Returns
A vector containing eight half-precision (16-bit) floating point elements.

Product and Performance Information

1

Intel's compilers may or may not optimize to the same degree for non-Intel microprocessors for optimizations that are not unique to Intel microprocessors. These optimizations include SSE2, SSE3, and SSSE3 instruction sets and other optimizations. Intel does not guarantee the availability, functionality, or effectiveness of any optimization on microprocessors not manufactured by Intel. Microprocessor-dependent optimizations in this product are intended for use with Intel microprocessors. Certain optimizations not specific to Intel microarchitecture are reserved for Intel microprocessors. Please refer to the applicable product User and Reference Guides for more information regarding the specific instruction sets covered by this notice.

Notice revision #20110804